Radio socket



Jan. 1941.

S. M. DEL CAMP RADIO SOCKET Filed Aug. 20, 1935 w PW 8% 1 8 9 /0 IWZM? Zwiow:

Jam/0M5 M. DEL CAMP yZ/ff dizzy Patented Jan. 28, 1941 i UNITED STATES PATENT OFFICE RADIO SOCKET Scipione M. Del Camp, Maywood, 111., assignor to Cinch Manufacturing Corporation, Chicago, 111., a corporation of Illinois Application August 20, 1935, Serial No. 37,021

1 Claim. (Cl. 173--328) My invention aims to provide improvements in plates I and 2 I have provided a hollowcentral electrical socket members and relates particularmember 8 which serves several important funcly to so-callecl radio tube sockets. tions. It is preferably made of metal and has a In the drawing which illustrates a preferred flute 8 along one side providing a locating memembodiment of my invention: her to receive the rib Ill (Fig. 9) on the projection 5.

Figure 1 is an end view of the center mem- I Il thereby to locate the prongs II (Fig. 9) for her for a socket; entrance into the apertures 4 and the contacts Fig. 2 is a side elevation of the member shown 3. As is well known to those skilled in the art in Figure l; the proper prongs II must be engaged with pre- Fig. 3 is a vertical section through the member determined contacts of the socket since they are 10 shown in Fig. 2 viewed from the right; wired to certain circuits in a radio set or other Fig. l is a vertical section through one form apparatus. Another important function of the of socket member for the reception of a radio member 8 is to prevent short-circuiting by entube or other member having rod-like contacts; trance of a metal instrument (Fig. 8) (such as it Fig. 5 is a section through another form of a screw driver) through the central holes in the socket member; socket. This is prevented by the apron I2 formed Fig. 6 is a bottom plan view of the socket as an extension of the member 8 below the botshown in Fig. 4; tom plate 2, as shown in Figs. 4, 5 and 8. This Fig. 7 is a bottom plan view of the socket apron I2 is long enough so that the greatest an- W shown in Fig. 5; gle an instrument may take passing through the Fig. 8 is a section taken on the line 8-8 of member will prevent engagement with the con- Fig. 6 showing how an implement inserted tacts 3, as shown by Fig. 8. through the center member is prevented from The member 8 also acts as a rivet to hold the engaging the contact members; and two plates I and 2 together. It has a preformed 5 Fig. 9 is a side elevational view of a portion shoulder I3 (Figs. 1, 2 and 3), near the upper of the lower end of a member to be engaged with end of the apron I2, which bears against the unthe socket member. der side of the bottom plate 2 and the other end In the drawing I have shown an improved of the member 8 is turned outwardly to form a socket structure for radio and like sockets where flange I4 bearing against the upper face of the 39 the part to be attached to the socket (for instance top plate I, all as shown in Figs. 4 and 5. Thus a radio tube) has a projection for locating the the parts are secured together and the member proper projecting contacts or pins with the 8 may provide the only means holding the parts proper pin-receiving contacts of the socket. The together, as shown by the two types of sockets sockets may be of difierent styles such as shown illustrated. Instead of having the flange I4 exby Figs. 4 through 7. tend from the flute 9 I have formed a notch I5 35 My improved socket is formed of two plates of in the upper end of the part 8 (Figs. 1 and 2) insulating material, which I will term a top plate which eliminates the flange I4 at that point and I and a bottom plate 2, and includes a plurality leaves a part of the notch I5 exposed (Figs. 4 and of contact-receiving members 3 of any well 5) so that the rib II] will more easily find its way known construction assembled with the plates in into the flute 9. The member 8 also acts as a any well known manner. The top plate I has a means to prevent relative rotation of the plates series of apertures 4 (Fig. 8) preferably arranged and preferably provides the only means for that in a circle and in alignment with contact-receivpurpose to reduce the socket to a minimum of ing apertures 5 in the bottom plate 2 through parts. To accomplish this result I have made which the contacts 3 project, as shown in Figs. the apertures 6 and I the same shape as the 45 6, '7 and 8. j cross-sectional shape of the member 8. Thus the In the center of the top plate I I have proflute 9 extends into notches I 6 and I! in. the vided a relatively large hole 6 in alignment with plates I and 2 respectively to interlock the parts the same size hole I in the bottom plate 2, as best against relative rotation. This keeps the apershown in Figs. 4 and 5. These holes are relativetures 4 in alignment with the apertures 5. The 50 1y large to accommodate the passage of a pro- -member 8 also reinforces the plates I and 2 adjection II) on a radio tube or other device for enjacent to the apertures 6 and I so that they will gagement with the socket. Such a projection is not be broken by pressure from the rib III beshown in Fig. 9 and it is made large for strength. fore it has been turned to registry with the flute In conjunction with the holes I5 and I in the as might be the case without the member 8. 55

The apron I2 is left open at the lower end because of the fact that theupper end or flange 14 may be rolled over while a setting tool is held against the under side of the shoulder l3, as will be understood by those skilled in the art of setting rivetsx This insures proper attachment of the parts with the possibility of breakage reduced to a minimum.

My improved socket is strong, durable, simple in construction and is particularly adaptedfor use with the new, so-called, metal tubes whichinvention is best defined by the following claim.-

I claim: A socket comprising an insulating base of generally flat shape and having a central hollow substantially cylindrical portion with the ends of said hollow substantially cylindrical portion extending beyond the upper and lower faces of said base, the lower extending end thereof being longer than the other extending end thereof, clips located laterally of said hollow cylindrical portion, each of said clips having an end portion thereof fixedly secured to said base and another -end portion thereof extending below said base through the cylindrical portion.

SCIPIONE M. DEL CAMP. 

